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<a href="common_8hh.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Voro++, a 3D cell-based Voronoi library</span>
<a name="l00002"></a>00002 <span class="comment">//</span>
<a name="l00003"></a>00003 <span class="comment">// Author   : Chris H. Rycroft (LBL / UC Berkeley)</span>
<a name="l00004"></a>00004 <span class="comment">// Email    : chr@alum.mit.edu</span>
<a name="l00005"></a>00005 <span class="comment">// Date     : August 30th 2011</span>
<a name="l00006"></a>00006 <span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment">/** \file common.hh</span>
<a name="l00008"></a>00008 <span class="comment"> * \brief Header file for the small helper functions. */</span>
<a name="l00009"></a>00009 
<a name="l00010"></a>00010 <span class="preprocessor">#ifndef VOROPP_COMMON_HH</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define VOROPP_COMMON_HH</span>
<a name="l00012"></a>00012 <span class="preprocessor"></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include &lt;cstdio&gt;</span>
<a name="l00014"></a>00014 <span class="preprocessor">#include &lt;cstdlib&gt;</span>
<a name="l00015"></a>00015 <span class="preprocessor">#include &lt;vector&gt;</span>
<a name="l00016"></a>00016 <span class="keyword">using namespace </span>std;
<a name="l00017"></a>00017 
<a name="l00018"></a>00018 <span class="preprocessor">#include &quot;<a class="code" href="config_8hh.html" title="Master configuration file for setting various compile-time options.">config.hh</a>&quot;</span>
<a name="l00019"></a>00019 
<a name="l00020"></a>00020 <span class="keyword">namespace </span>voro {
<a name="l00021"></a>00021 <span class="comment"></span>
<a name="l00022"></a>00022 <span class="comment">/** \brief Function for printing fatal error messages and exiting.</span>
<a name="l00023"></a>00023 <span class="comment"> *</span>
<a name="l00024"></a>00024 <span class="comment"> * Function for printing fatal error messages and exiting.</span>
<a name="l00025"></a>00025 <span class="comment"> * \param[in] p a pointer to the message to print.</span>
<a name="l00026"></a>00026 <span class="comment"> * \param[in] status the status code to return with. */</span>
<a name="l00027"></a>00027 <span class="keyword">inline</span> <span class="keywordtype">void</span> voro_fatal_error(<span class="keyword">const</span> <span class="keywordtype">char</span> *p,<span class="keywordtype">int</span> status) {
<a name="l00028"></a>00028         fprintf(stderr,<span class="stringliteral">&quot;voro++: %s\n&quot;</span>,p);
<a name="l00029"></a>00029         exit(status);
<a name="l00030"></a>00030 }
<a name="l00031"></a>00031 <span class="comment"></span>
<a name="l00032"></a>00032 <span class="comment">/** \brief Prints a vector of positions.</span>
<a name="l00033"></a>00033 <span class="comment"> *</span>
<a name="l00034"></a>00034 <span class="comment"> * Prints a vector of positions as bracketed triplets.</span>
<a name="l00035"></a>00035 <span class="comment"> * \param[in] v the vector to print.</span>
<a name="l00036"></a>00036 <span class="comment"> * \param[in] fp the file stream to print to. */</span>
<a name="l00037"></a>00037 <span class="keyword">inline</span> <span class="keywordtype">void</span> voro_print_positions(vector&lt;double&gt; &amp;v,FILE *fp=stdout) {
<a name="l00038"></a>00038         <span class="keywordflow">if</span>(v.size()&gt;0) {
<a name="l00039"></a>00039                 fprintf(fp,<span class="stringliteral">&quot;(%g,%g,%g)&quot;</span>,v[0],v[1],v[2]);
<a name="l00040"></a>00040                 <span class="keywordflow">for</span>(<span class="keywordtype">int</span> k=3;(<span class="keywordtype">unsigned</span> int) k&lt;v.size();k+=3) {
<a name="l00041"></a>00041                         fprintf(fp,<span class="stringliteral">&quot; (%g,%g,%g)&quot;</span>,v[k],v[k+1],v[k+2]);
<a name="l00042"></a>00042                 }
<a name="l00043"></a>00043         }
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045 <span class="comment"></span>
<a name="l00046"></a>00046 <span class="comment">/** \brief Opens a file and checks the operation was successful.</span>
<a name="l00047"></a>00047 <span class="comment"> *</span>
<a name="l00048"></a>00048 <span class="comment"> * Opens a file, and checks the return value to ensure that the operation</span>
<a name="l00049"></a>00049 <span class="comment"> * was successful.</span>
<a name="l00050"></a>00050 <span class="comment"> * \param[in] filename the file to open.</span>
<a name="l00051"></a>00051 <span class="comment"> * \param[in] mode the cstdio fopen mode to use.</span>
<a name="l00052"></a>00052 <span class="comment"> * \return The file handle. */</span>
<a name="l00053"></a>00053 <span class="keyword">inline</span> FILE* safe_fopen(<span class="keyword">const</span> <span class="keywordtype">char</span> *filename,<span class="keyword">const</span> <span class="keywordtype">char</span> *mode) {
<a name="l00054"></a>00054         FILE *fp=fopen(filename,mode);
<a name="l00055"></a>00055         <span class="keywordflow">if</span>(fp==NULL) {
<a name="l00056"></a>00056                 fprintf(stderr,<span class="stringliteral">&quot;voro++: Unable to open file &#39;%s&#39;\n&quot;</span>,filename);
<a name="l00057"></a>00057                 exit(<a class="code" href="config_8hh.html#a8de7f106cac2556a67bcc61bd364ed38">VOROPP_FILE_ERROR</a>);
<a name="l00058"></a>00058         }
<a name="l00059"></a>00059         <span class="keywordflow">return</span> fp;
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061 
<a name="l00062"></a>00062 <span class="keywordtype">void</span> voro_print_vector(vector&lt;int&gt; &amp;v,FILE *fp=stdout);
<a name="l00063"></a>00063 <span class="keywordtype">void</span> voro_print_vector(vector&lt;double&gt; &amp;v,FILE *fp=stdout);
<a name="l00064"></a>00064 <span class="keywordtype">void</span> voro_print_face_vertices(vector&lt;int&gt; &amp;v,FILE *fp=stdout);
<a name="l00065"></a>00065 
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067 
<a name="l00068"></a>00068 <span class="preprocessor">#endif</span>
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